yii\db\BaseActiveRecord::refresh PHP Method

    public function refresh()
    {
        /* @var $record BaseActiveRecord */
        $record = static::findOne($this->getPrimaryKey(true));
        if ($record === null) {
            return false;
        }
        foreach ($this->attributes() as $name) {
            $this->_attributes[$name] = isset($record->_attributes[$name]) ? $record->_attributes[$name] : null;
        }
        $this->_oldAttributes = $record->_oldAttributes;
        $this->_related = [];
        $this->afterRefresh();
        return true;
    }